Research outcomes suggest a 1 mile setback from oil and gas operations might reduce the risk for endocrine disruption, cancer, asthma, etc., around oil and gas operations as toxic air pollutants get diluted with distance from the source.Proposition 112 asks for a 1/2-mile setback, which is just the blast radius from a well, the radius first responders evacuate in case of an accident. A 1/2-mile setback is reasonable. Join the 171,596 voters who signed the petition to get this measure on the ballot with your yes vote.– Jutta Seeger, Greeley